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Randomized Controlled Trial Clinical Trial
[Effects of dopexamine on splanchnic perfusion in cardiac surgery].
- F Bach, M Silomon, U Grundmann, J Stürner, T Graeter, and R Larsen.
- Klinik für Anästhesiologie und Intensivmedizin, Chirurgische Klinik der Universitätskliniken des Saarlandes Homburg/Saar. aifbac@med-rz.uni-sb.de
- Anaesthesist. 1999 Oct 1; 48 (10): 713-7.
UnlabelledThe present study investigates the effects of dopexamine on the splanchnic perfusion and the general circulation in patients undergoing coronary artery bypass grafting.Methods34 Patients undergoing elective coronary artery bypass grafting were randomized to receive either dopexamine (1 microg/kg/min) or placebo (0,9% NaCl. ) Cardiac output was measured by thermodilution using a pulmonary artery catheter. Splanchnic blood flow was determined by constant infusion technique of indocyanine green dye (ICG) using a hepatic vein catheter.ResultsUnder steady state conditions before surgery, dopexamine increased systemic oxygen supply and cardiac output by an increase in heart rate and stroke volume, with no increase in systemic oxygen demand. Before surgery dopexamine increased splanchnic blood flow together with an increase in cardiac output. After cardiopulmonary bypass dopexamine increased splanchnic perfusion without a concomittant rise in cardiac output.ConclusionThese results provide evidence that dopexamine improves splanchnic blood flow in patients with coronary artery disease before and after pulmonary bypass without impairment of general hemodynamics.
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